GM Small Block Performance Pumps
10550
- High volume performance upgrade for M-55HV.
- 25% increase in volume over stock oil pump.
- The 10550 housing and cover are CNC machined and phosphate coated.
- The lower pressure spring is included to reduce pressure if desired.
- Includes intermediate shaft with steel guide. Uses 5/8” press in screen.
10551
High volume performance upgrade for M155HV.- 25% increase in volume over stock oil pump.
- The 10551 housing and cover are CNC machined and phosphate coated.
- The lower pressure spring is included to reduce pressure if desired.
10552
High volume performance oil pump.- 10% increase in volume over stock oil pump.
- The 10552 is manufactured with the drive and idler shafts extended to allow for additional support in the cover eliminating dynamic shaft deflection at increased RPM levels.
- The cover is doweled to the pump housing to assure alignment of the shaft bores.
- Screw in plug retains relief valve spring instead of pin.
- Relief hole in cover uses screw in plug instead of pressed cup plug.
- All bolts are self locking socket heads, with the wrench supplied.
- The housing and cover are CNC machined and phosphate coated.
- Includes intermediate shaft with steel guide. Uses both 3/4” bolt on or press in screen.
- The lower pressure spring is included to reduce pressure if desired.
- Patent No. 5,810,571.
10552C (Anti-Cavitation)
- High volume performance oil pump.
- 10% increase in volume over stock oil pump.
- Same as the 10552 with the addition of grooves machined in the body and cover. The grooves reduce cavitation effects in high RPM applications.
- Includes intermediate shaft with steel guide.
- Uses both 3/4” bolt on or press in screen.
- Using this oil pump will reduce pressure at idle.
- The 10552C uses the high pressure spring only.
- Racing Applications Only.
- Patent No. 5,810,571.
10553
- High pressure performance upgrade for M-55 & M-55A.
- Standard volume oil pump.
- The 10553 housing and cover are CNC machined and phosphate coated.
- Manufactured with pink spring installed for higher pressure (M-55A).
- To change pump to lower pressure (M-55) install the supplied yellow spring.
- Includes intermediate shaft with steel guide.
- The 10553 uses a 5/8” press in screen.
10554
- Performance upgrade for M155. Standard volume oil pump.
- The 10554 housing and cover are CNC machined and manganese phosphate coated.
- Manufactured with pink spring installed for higher pressure.
- To change pump to lower pressure install the supplied yellow spring.
- Includes intermediate shaft with steel guide.
- The 10554 uses a 3/4” press in screen.
10555
- High Volume performance upgrade for the 10550 oil pump.
- 25% increase in volume over stock oil pump.
- The 10555 is manufactured with the drive and idler shafts extended to allow for additional support in the cover eliminating dynamic shaft deflection at increased RPM levels.
- The cover is doweled to the pump housing to assure alignment of the shaft bores.
- Screw in plug retains relief valve spring instead of pin.
- Relief hole in cover uses screw in plug instead of pressed cup plug.
- All bolts are self locking socket heads, with the wrench supplied.
- The housing and cover are CNC machined and manganese phosphate coated.
- Includes intermediate shaft with steel guide.
- Uses both 3/4” bolt on or press in screen.
- The lower pressure spring is included to reduce pressure if desired.
- Patent No. 5,810,571
10555C (Anti-Cavitation)
- High volume performance upgrade for the 10550 oil pump.
- 25% increase in volume over stock oil pump.
- Same as the 10555 with the addition of grooves machined in the body and cover. The grooves reduce cavitation effects in high RPM applications.
- Includes intermediate shaft with steel guide.
- Uses both 3/4” bolt on or press in screen.
- Using this oil pump will reduce pressure at idle.
- The 10555C uses the high pressure spring only.
- Racing Applications Only.
- Patent No. 5,810,571
10990
High volume performance upgrade for the M-99HV-S.- Increase in volume of 25% over stock oil pump.
- The 10990 is a Big Block style oil pump made to fit the Small Block applications.
- The drive and idler shafts have been extended to allow for additional support in the cover. Additional support eliminates dynamic shaft deflection at increased RPM levels.
- The cover is doweled to the pump housing to assure alignment of the shaft bores.
- The relief valve has a screw-in plug instead of a pin.
- The housing and cover are CNC machined and phosphate coated.
- An additional spring, the original stock replacement is supplied which will reduce bypass pressure if needed.
- Includes intermediate shaft with steel guide.
- Uses 3/4” press in screen.
- Patent No. 5,810,571.
10990C (Anti-Cavitation)
- High volume performance upgrade for the M-99HV-S.
- Increase in volume of 25% over stock oil pump.
- The same as the 10990 except with the addition of grooves machined in the housing and cover. The grooves reduce cavitation effects in high RPM applications.
- Using this oil pump will reduce pressure at idle.
- Includes intermediate shaft with steel guide.
- Uses 3/4” press in screen.
- Racing applications only.
- Patent No. 5,810,571.
GM Oldsmobile Performance Pumps
M-22FHV
High volume upgrade of the M-22F oil pump.- 20% increase in volume over stock oil pump.
- The M-22FHV is manufactured with both a 3/4” bolt on type flange and a 5/8” chamfered hole allowing for the use of both bolt on or press in type screen.
- For use with Oldsmobile 260, 307, 350, 400, 403, 425 & 455 engines.
10540
High pressure performance upgrade for the M-54D-S.- The housing is CNC machined and phosphate coated.
- Includes 3/4” diameter oil pickup screen.
10541
- High pressure performance upgrade for the M-54F.
- 30% increase in pressure over the 10540 oil pump.
- The housing is CNC machined and phosphate coated.
- Includes 3/4” diameter oil pickup screen.
GM Big Block Performance Pumps
10770
High volume performance upgrade for M-77HV.- 25% increase in volume over stock pump.
- The housing and cover are CNC machined and phosphate coated.
- The lower pressure spring is included to reduce pressure if desired.
- Includes intermediate shaft with steel guide.
- Uses 3/4” press in screen.
10774
- Standard volume performance upgrade for M-77.
- The housing and cover are CNC machined and phosphate coated.
- The lower pressure spring is included to reduce pressure if desired.
- Includes intermediate shaft with steel guide.
- Uses 3/4” press in screen.
10778
- High volume performance upgrade for the 10770.
- Increase in volume of 25% over stock oil pump.
- The drive shaft has been manufactured from chrome-moly steel.
- The drive and idler shafts have been extended to allow for additional support in the cover. Additional support eliminates dynamic shaft deflection at increased RPM levels.
- The cover is doweled to the pump housing to assure alignment of the shaft bores.
- The relief valve has a screw-in plug instead of a pin.
- The housing and cover are CNC machined and phosphate coated.
- An additional spring, the original stock replacement is supplied which will reduce bypass pressure if needed.
- Includes intermediate shaft with steel guide.
- Uses 3/4” press in screen.
- Patent No. 5,810,571.
10778C (Anti-Cavitation)
- High volume performance upgrade for the 10770.
- Increase in volume of 25% over stock oil pump.
- The same as the 10778 except with the addition of grooves machined in the housing and cover. The grooves reduce cavitation effects in high RPM applications.
- Using this oil pump will reduce pressure at idle.
- Includes intermediate shaft with steel guide.
- Uses 3/4” press in screen.
- Racing applications only.
- Patent No. 5,810,571
